US Bridges

Old Route 8B over Robbs Creek

FairClosed to traffic

Hamilton County, New York · 4 Miles E of Speculator · Structure no. 000000003307520

Built
1915
110 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
14
2021 count
Owner
County
County Highway Agency

About this bridge

Old Route 8B over Robbs Creek is a steel stringer/multi-beam or girder carrying Old Route 8B over Robbs Creek in Hamilton County, New York. It was built in 1915, so it is 110 years old, older than the New York average of 53 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: closed to all traffic.

It carries about 14 vehicles a day, roughly 15% of them trucks, projected to reach 20 by 2041. The structure is 31 ft (9.4 m) long and 18 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesOld Route 8B
CrossesRobbs Creek
Location4 Miles E of Speculator
Coordinates43.50882, -74.28612
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating0 US tons
Inventory rating0 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span25 ft (7.6 m)
Deck width18 ft (5.5 m)
Roadway width13 ft (4.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14 (2021)
Projected traffic20 by 2041
Trucks15%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$329,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Route 8B over Robbs Creek built?

It was built in 1915, making it 110 years old in 2025.

What condition is Old Route 8B over Robbs Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does Old Route 8B over Robbs Creek carry?

About 14 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is Old Route 8B over Robbs Creek?

The structure is 31 ft (9.4 m) long with a longest span of 25 ft (7.6 m) and a deck 18 ft wide.

Who owns Old Route 8B over Robbs Creek?

It is owned by the County Highway Agency.